That link does look promising! I'm not familiar with it. Thanks for the share. They are from the Theravada school, which is particularly strong on the Pali cannon (the first Buddhist scriptures that focus on the historical Buddha's teaching). It would be an excellent foundational course to Buddhism.
There are many schools of Buddhism that have different variations of forms and traditions. The form of Buddhism that I'm most familiar with is Zen, a Japanese school. I actually practice semi-regularly at a local Zen center. I volunteer in their library and am working on cataloging it. I'll keep an eye out for books that may be good intro books.
One of my personal favorites is Zen Mind Beginner's Mind by Shunryu Suzuki Roshi. The book is a collection of talks he gave and it serves as a great intro to Zen.
If you have any questions, I'd be happy to try to elaborate the best I can or direct to specific texts. For context, I was a Hindu monk and priest when I was younger. I've been practicing Zen, to varying degrees of intensity, for the last 10 years.
